NXP Semiconductors FS32K148URT0VLUR

Overview

FS32K148URT0VLUR from NXP Semiconductors is an automotive-grade 32-bit Arm® Cortex-M4F microcontroller designed for real-time control in safety-critical vehicle subsystems. It operates at up to 112 MHz (HSRUN mode), features 2 MB program flash with ECC, 256 KB SRAM with ECC, and supports -40 °C to 105 °C ambient operation. Used in body control modules, gateway ECUs, and battery management systems requiring ASIL-B compliance.

For engineers reviewing the FS32K148URT0VLUR datasheet, FS32K148URT0VLUR pinout, FS32K148URT0VLUR application, or FS32K148URT0VLUR equivalent, key selection considerations include HSRUN/RUN mode switching constraints for CSEc/EEPROM operations, FlexCAN with optional CAN-FD support, QuadSPI with HyperBus™, and 156 GPIO with interrupt capability - all within a 100-pin LQFP package rated for automotive temperature range.

Technical Context

The FS32K148URT0VLUR implements dual-core execution context via Arm Cortex-M4F core with integrated FPU and DSP extensions, paired with configurable NVIC and memory protection enforced by NXP's system MPU at crossbar switch level. Its clock architecture integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz) with flexible gating across HSRUN, RUN, STOP, VLPR, and VLPS power modes.

Peripheral integration includes three FlexCAN modules (with CAN-FD option), two 12-bit ADCs (1 Msps, up to 32 channels each), eight FlexTimer modules (64 total PWM/IC/OC channels), and security acceleration via CSEc compliant with SHE specification - all accessible through AXBS-Lite crossbar and eDMA with DMAMUX routing to 63 request sources.

Key Specifications

Pinout & Package

FS32K148URT0VLUR is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized S32K14x pinout layout, supporting full peripheral mapping including dual ADC inputs, multiple CAN transceiver interfaces, and dedicated SWD/JTAG debug pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with FS32K148URT0VLUR, S32K146UFT0VLUR reduces memory and connectivity for cost-sensitive BCMs, while S32K148UFT0MLUR trades HSRUN speed for extended thermal rating - both retain identical pinout, CSEc, and CAN-FD functionality for seamless migration within the S32K14x family.

Availability

FS32K148URT0VLUR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, and battery management systems requiring stable component supply across long production lifecycles and AEC-Q100-compliant sourcing.

Supply support for FS32K148URT0VLUR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and automotive qualification standards.

The S32K1xx family, including FS32K148URT0VLUR, was engineered specifically for ASIL-B automotive applications - integrating safety mechanisms, security accelerators, and robust I/O to replace legacy 16-bit MCUs in next-generation ECU designs.

FAQ

What is the maximum operating frequency of the FS32K148URT0VLUR, and under what conditions is it guaranteed?

The FS32K148URT0VLUR achieves up to 112 MHz in HSRUN mode, guaranteed across -40 °C to 105 °C ambient temperature with VDD ≥ 2.97 V when PLL is engaged. Below 2.97 V, operation is limited to 48 MHz using FIRC. The device must operate in RUN mode (80 MHz) to execute CSEc cryptographic functions or FlexNVM EEPROM emulation - attempting these in HSRUN triggers error flags.

Does the FS32K148URT0VLUR support CAN-FD, and how many instances are available?

Yes, the FS32K148URT0VLUR supports CAN-FD on all three FlexCAN modules. Each module can be independently configured for Classical CAN or CAN-FD operation per ISO 11898-1, enabling mixed-speed network topologies. CAN-FD frame transmission and reception are handled in hardware with dedicated message buffers and acceptance filtering - no software overhead is required for protocol handling.

What memory protection mechanisms does the FS32K148URT0VLUR implement for functional safety compliance?

The FS32K148URT0VLUR implements NXP's system MPU at the AXBS-Lite crossbar switch level - assigning per-master (CPU, DMA, Ethernet) access rights to protected memory regions. Combined with ECC on 2 MB flash and 256 KB SRAM, CRC module for data integrity checking, and internal/external watchdogs (WDOG/EWM), it satisfies ASIL-B requirements per ISO 26262 without requiring external safety monitors.

Can the FS32K148URT0VLUR operate from a 3.3 V supply, and are there any restrictions?

Yes, the FS32K148URT0VLUR operates from 3.3 V nominal supply (within 2.7–5.5 V range). However, when using PLL-based clocks (e.g., 112 MHz HSRUN), minimum VDD is 2.97 V - 3.3 V fully satisfies this. All I/Os are 5 V-tolerant regardless of VDD, and analog modules (ADC, CMP) maintain full specification at 3.3 V with appropriate VREFH configuration (2.7–3.4 V).

What debug interfaces are supported by the FS32K148URT0VLUR, and are they accessible in all power modes?

The FS32K148URT0VLUR supports Serial Wire Debug (SWD) via SWD_CLK and SWD_IO pins, compatible with standard ARM CoreSight tools. Debug is available in RUN, STOP, and VLPR modes but not in VLPS or HSRUN - entering HSRUN automatically disables SWD access until a mode transition occurs. Trace capabilities (ITM, TPIU, DWT) require SWD connection and are active only in RUN mode.